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Question:

Hotel IC card door serial how to solve the problem?

Card machine serial port problems can not system card

Answer:

Installed for a long time, the warranty, then to repair it, this kind of things they will not Daoteng, unlike the assembly machine, where bad for where!
This is a small thing, there prompted the "serial error" one reason may be your computer host serial port has a problem, the reader serial cable line down to another serial port, while the door system software parameters change What about the serial number on the line. Another reason may be other operators do not care chaos operation, the system parameters inside the serial number changed, you change it back to the default on the line. No longer, repair the reader!
Can be added to the company's after-sale technology: asked, each plant should have a similar or 0750-

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